Finding the Third Proportional to 111,955.50 and 243,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,955.50 : 243,382.50 = 243,382.50 : x
2. Step 2: Convert to fraction form
   111,955.50/243,382.50 = 243,382.50/x
3. Step 3: Cross multiply
   111,955.50x = 243,382.50 × 243,382.50
4. Step 4: Simplify right side
   111,955.50x = 59,235,041,306.25
5. Step 5: Solve for x
   x = 59,235,041,306.25/111,955.50
6. Step 6: Final answer
   x = 529,094.52